src: reduce number of exported symbols
Use static
definitions and anonymous namespaces to reduce the
number of symbols that are exported from the node
binary.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
src
CI: https://ci.nodejs.org/job/node-test-commit/9057/ CITGM: https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/712/